5

CVE-2000-0549: cygnus cygnus_network_security

CVSS: 5.0v2.0MediumModified
Published 13-10-2000Last modified 08-08-2024
Open JSON

Vulnerability summary

CVE-2000-0549 is a medium (CVSS 5.0) vulnerability in cygnus cygnus_network_security. EPSS estimates a 2.28% chance of exploitation in the next 30 days, higher than 82.8% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
2.28%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 13-10-2000
    PublishedVulnerability first disclosed.
  2. 08-08-2024
    Last modifiedVulnerability information updated.

Description

Kerberos 4 KDC program does not properly check for null termination of AUTH_MSG_KDC_REQUEST requests, which allows remote attackers to cause a denial of service via a malformed request.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.28%

Chance of exploitation in the next 30 days

Percentile

83%

Versus all other CVEs

30-day change

0.00 pp

From 2.28% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (archives.neohapsis.com)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Cygnus2 products
Mit2 products

2 vendors · 4 products

References

5 links